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Features

Air-Tight Steam Generator, Locomotive Engineer Strike in England

Science as the Latest Parisian Fashion

Business and Manufacturing Items

The Alchemists and the Art of Transmutation

Editorial Summary

Gleanings from the Polytechnic Association

Electric Light.--Wilde's Magneto-Electric Machine

Science Familiarly Illustrated

Ansell's Fire Damp Indicator

Opening of the Paris Exposition

Massey's Ship Leakage Alarm

Recent American and Foreign Patents

Answers to Correspondents

The Markets

New Publications

Extension Notices

Man and Nature

Wing and Bradeen' Blind Fastener

Osbourne and Massey's Improved Hose Coupling

Morris' Axle Lubricator

A Terrible Invention

What Do We Work For ?

The Great Obstacle to Progress

Caution

Natural Gas Supply for Towns

Patent Claims

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April 20, 1867

Reanimate Your Brain

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